Invention Grant
- Patent Title: Control of friction at the nanoscale
- Patent Title (中): 控制摩擦在纳米级
-
Application No.: US10770857Application Date: 2004-02-03
-
Publication No.: US07693587B2Publication Date: 2010-04-06
- Inventor: Jacob Barhen , Yehuda Y. Braiman , Vladimir Protopopescu
- Applicant: Jacob Barhen , Yehuda Y. Braiman , Vladimir Protopopescu
- Applicant Address: US TN Oak Ridge
- Assignee: UT-Battelle, LLC
- Current Assignee: UT-Battelle, LLC
- Current Assignee Address: US TN Oak Ridge
- Agency: Brinks Hofer Gilson & Lione
- Main IPC: G05B13/02
- IPC: G05B13/02 ; G05B19/08 ; G05B11/32 ; G01P15/00 ; B23K9/00

Abstract:
Methods and apparatus are described for control of friction at the nanoscale. A method of controlling frictional dynamics of a plurality of particles using non-Lipschitzian control includes determining an attribute of the plurality of particles; calculating an attribute deviation by subtracting the attribute of the plurality of particles from a target attribute; calculating a non-Lipschitzian feedback control term by raising the attribute deviation to a fractionary power ξ=(2m+1)/(2n+1) where n=1, 2, 3 . . . and m=0, 1, 2, 3 . . . , with m strictly less than n and then multiplying by a control amplitude; and imposing the non-Lipschitzian feedback control term globally on each of the plurality of particles; imposing causes a subsequent magnitude of the attribute deviation to be reduced.
Public/Granted literature
- US20100042266A1 CONTROL OF FRICTION AT THE NANOSCALE Public/Granted day:2010-02-18
Information query